1. Department of Obstetrics and Gynecology, University of Heidelberg, Heidelberg, Germany
2. Erlangen University Hospital, Department of Gynecology and Obstetrics, Comprehensive Cancer Center Erlangen-EMN, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany
3. Onkologie Aschaffenburg, Aschaffenburg, Germany
4. Department of Obstetrics and Gynecology, University of Tübingen, Tübingen, Germany
5. Department of Gynecology and Obstetrics, University Hospital Würzburg, Würzburg, Germany
6. Kooperatives Brustzentrum Paderborn, Klinik für Gynäkologie und Geburtshilfe Frauenklinik St. Louise, Paderborn, St. Josefs-Krankenhaus, Salzkotten, Germany
7. Department of Gynecology and Obstetrics, Ulm University Hospital, Ulm, Germany
8. Department of Obstetrics and Gynecology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
9. Charité University Hospital, Campus Benjamin Franklin, Department of Hematology, Oncology and Tumour Immunology, Berlin, Germany
10. ClinSol GmbH & Co KG, Würzburg, Germany
11. Department of Gynecology and Obstetrics, Marienhospital Bottrop, Bottrop, Germany
12. OncoConsult Hamburg GmbH, Hamburg, Germany
13. Oncology Practice at Bethanien Hospital Frankfurt, Frankfurt, Germany
14. Department of Gynecology and Obstetrics, University Hospital Düsseldorf, Düsseldorf, Germany
15. National Center for Tumor Diseases, Division Gynecologic Oncology, University Hospital Heidelberg, Heidelberg, Germany
16. Department of Gynecology, Hamburg-Eppendorf University Medical Center, Hamburg, Germany